Monitoring ecological change with smart phones and social media

Inspired by the USGS's Sam Droege (the man behind
monitorchange.org),
we're starting another project to turn park visitors into a
remote sensor network! It's simple: Put up a sign asking people
to set their cameras or phones in an angle bracket, take a
photo, and post it with a hashtag to Twitter, Instagram, or
Flickr. Then we harvest the photos and create timelapse views of
change over time.

In 2013, the Rim Fire burned more than 400 square miles in and around Yosemite National Park. A lot of that burned area was in the Stanislaus National Forest. Nerds for NAture teamed up with National Forest staff and the nonprofit Wholly H2O to install a dozen signs around the forest, our largest and most permanent Change Brackets installation yet!